|By Manuel Weiss||
|May 13, 2014 11:13 AM EDT||
Every application has it’s dark corner. Some part of the application of which you are not proud of. That part of the application is working code, it’s in production for some time but you still have an uneasy feeling about it. You fear that it will come back at you at the worst possible time.
At Codeship one of these parts was our Dashboard reload. In this article I will show you how we made it awesome.
The Codeship Project Dashboard
When you are on your dashboard, or watching the builds of a particular project or observe a certain build.
We are updating the page without you having to hit reload all the time. Every time a new build starts or we receive some new output from your test commands we update the page and you can see the changes instantly.
Back to the past
Realtime Updates with Pusher
Over the time we optimized this feature step by step. We added some checks which allowed us the respond with a 304 (Content not modified) for not having to render the page again and again even when there are no updates. The next step was to let the client save the last time it got updates from the server and included that information in the next request. This allowed us to just deliver the missing parts. We were still having that 10 second page reload. We decided to change that!
The web changed dramatically in recent years. Web sockets have been around for quite some time now and a huge ecosystem evolved around these new technologies. We never had the intention to implement our own realtime push infrastructure, thats totally out of focus. We needed somebody who handles and provides a reliable push infrastructure for us. In the back of my head i knew about PusherApp, checking their site in the past but never having a good use case to actually use Pusher.
37 changed files with 315 additions and 159 deletions.
Implementing Pusher was quite easy and really fun. Let’s go into the details.
def auth if pusher_access.can_access? params[:channel_name] response = Pusher[params[:channel_name]].authenticate(params[:socket_id]) render json: response else render text: "Not authorized", status: 403 end end
If you go to the Codeship Dashboard you can see multiple projects. If you have just 1 project you see builds from that project. If you have multiple projects you see the last 10 builds for these projects. In this case we subscribe to multiple channels. For example if I go to the dashboard I’m subscribed to the channels “private-project-7978″ and “private-project-211″. If there is a new build starting for one of those projects we send a message to that channel and everybody who watches that project in their dashboard gets the update.
On a normal day we push 1.3 Million messages and have 300 concurrently connected clients.
Right now we don’t include the updated parts into the message we send over Pusher. This means the client still does the page reload and gets the updates from the server. If we deliver the updates straight to the client we save a lot of requests which are not needed because we have the data that changed already in our hands at the time the push gets triggered.
What we think
We are very happy with the changes we made and Pusher itself. It made the application logic a lot simpler. We don’t check for not modified content anymore, since we only trigger reloads after changes happened. The next step is to push the modified content directly to all connected clients. I’m looking forward to the next improvements we gonna ship.
Let us know your experiences with Pusher. How do YOU achieve Realtime Messaging for your app?
Improve your dark corners today!
SYS-CON Events announced today that T-Mobile will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. As America's Un-carrier, T-Mobile US, Inc., is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to 67.4 million customers who are unwilling to compromise on ...
Apr. 30, 2017 06:15 PM EDT Reads: 1,656
The 20th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held June 6-8, 2017, at the Javits Center in New York City, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Containers, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal ...
Apr. 30, 2017 05:30 PM EDT Reads: 1,821
SYS-CON Events announced today that CollabNet, a global leader in enterprise software development, release automation and DevOps solutions, will be a Bronze Sponsor of SYS-CON's 20th International Cloud Expo®, taking place from June 6-8, 2017, at the Javits Center in New York City, NY. CollabNet offers a broad range of solutions with the mission of helping modern organizations deliver quality software at speed. The company’s latest innovation, the DevOps Lifecycle Manager (DLM), supports Value S...
Apr. 30, 2017 05:15 PM EDT Reads: 1,523
Cybersecurity is a critical component of software development in many industries including medical devices. However, code is not always written to be robust or secure from the unknown or the unexpected. This gap can make medical devices susceptible to cybersecurity attacks ranging from compromised personal health information to life-sustaining treatment. In his session at @ThingsExpo, Clark Fortney, Software Engineer at Battelle, will discuss how programming oversight using key methods can incre...
Apr. 30, 2017 05:15 PM EDT Reads: 4,228
SYS-CON Events announced today that Hitachi, the leading provider the Internet of Things and Digital Transformation, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Hitachi Data Systems, a wholly owned subsidiary of Hitachi, Ltd., offers an integrated portfolio of services and solutions that enable digital transformation through enhanced data management, governance, mobility and analytics. We help globa...
Apr. 30, 2017 05:00 PM EDT Reads: 1,655
SYS-CON Events announced today that Juniper Networks (NYSE: JNPR), an industry leader in automated, scalable and secure networks, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Juniper Networks challenges the status quo with products, solutions and services that transform the economics of networking. The company co-innovates with customers and partners to deliver automated, scalable and secure network...
Apr. 30, 2017 03:45 PM EDT Reads: 1,879
NHK, Japan Broadcasting, will feature the upcoming @ThingsExpo Silicon Valley in a special 'Internet of Things' and smart technology documentary that will be filmed on the expo floor between November 3 to 5, 2015, in Santa Clara. NHK is the sole public TV network in Japan equivalent to the BBC in the UK and the largest in Asia with many award-winning science and technology programs. Japanese TV is producing a documentary about IoT and Smart technology and will be covering @ThingsExpo Silicon Val...
Apr. 30, 2017 02:30 PM EDT Reads: 1,029
New competitors, disruptive technologies, and growing expectations are pushing every business to both adopt and deliver new digital services. This ‘Digital Transformation’ demands rapid delivery and continuous iteration of new competitive services via multiple channels, which in turn demands new service delivery techniques – including DevOps. In this power panel at @DevOpsSummit 20th Cloud Expo, moderated by DevOps Conference Co-Chair Andi Mann, panelists will examine how DevOps helps to meet th...
Apr. 30, 2017 02:00 PM EDT Reads: 1,948
SYS-CON Events announced today that Hitachi Data Systems, a wholly owned subsidiary of Hitachi LTD., will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City. Hitachi Data Systems (HDS) will be featuring the Hitachi Content Platform (HCP) portfolio. This is the industry’s only offering that allows organizations to bring together object storage, file sync and share, cloud storage gateways, and sophisticated search an...
Apr. 30, 2017 02:00 PM EDT Reads: 895
Apr. 30, 2017 01:15 PM EDT Reads: 2,725
The explosion of new web/cloud/IoT-based applications and the data they generate are transforming our world right before our eyes. In this rush to adopt these new technologies, organizations are often ignoring fundamental questions concerning who owns the data and failing to ask for permission to conduct invasive surveillance of their customers. Organizations that are not transparent about how their systems gather data telemetry without offering shared data ownership risk product rejection, regu...
Apr. 30, 2017 12:00 PM EDT Reads: 1,944
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
Apr. 30, 2017 11:30 AM EDT Reads: 2,468
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place June 6-8, 2017, at the Javits Center in New York City, New York, is co-located with 20th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry p...
Apr. 30, 2017 10:00 AM EDT Reads: 1,738
Five years ago development was seen as a dead-end career, now it’s anything but – with an explosion in mobile and IoT initiatives increasing the demand for skilled engineers. But apart from having a ready supply of great coders, what constitutes true ‘DevOps Royalty’? It’ll be the ability to craft resilient architectures, supportability, security everywhere across the software lifecycle. In his keynote at @DevOpsSummit at 20th Cloud Expo, Jeffrey Scheaffer, GM and SVP, Continuous Delivery Busine...
Apr. 30, 2017 09:15 AM EDT Reads: 1,473
Bert Loomis was a visionary. This general session will highlight how Bert Loomis and people like him inspire us to build great things with small inventions. In their general session at 19th Cloud Expo, Harold Hannon, Architect at IBM Bluemix, and Michael O'Neill, Strategic Business Development at Nvidia, discussed the accelerating pace of AI development and how IBM Cloud and NVIDIA are partnering to bring AI capabilities to "every day," on-demand. They also reviewed two "free infrastructure" pr...
Apr. 30, 2017 08:30 AM EDT Reads: 1,866
SYS-CON Events announced today that Super Micro Computer, Inc., a global leader in compute, storage and networking technologies, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Supermicro (NASDAQ: SMCI), the leading innovator in high-performance, high-efficiency server technology, is a premier provider of advanced server Building Block Solutions® for Data Center, Cloud Computing, Enterprise IT, Hadoop/...
Apr. 30, 2017 05:45 AM EDT Reads: 2,692
Apr. 30, 2017 03:45 AM EDT Reads: 9,488
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand using interactive visualizations and salary indicator tools to maximize earning potential. Manish Dixit is VP of Product and Engineering at Dice. As the leader of the Product, Engineering and Data Sciences team at D...
Apr. 30, 2017 03:30 AM EDT Reads: 6,278
The age of Digital Disruption is evolving into the next era – Digital Cohesion, an age in which applications securely self-assemble and deliver predictive services that continuously adapt to user behavior. Information from devices, sensors and applications around us will drive services seamlessly across mobile and fixed devices/infrastructure. This evolution is happening now in software defined services and secure networking. Four key drivers – Performance, Economics, Interoperability and Trust ...
Apr. 30, 2017 01:45 AM EDT Reads: 1,159
With billions of sensors deployed worldwide, the amount of machine-generated data will soon exceed what our networks can handle. But consumers and businesses will expect seamless experiences and real-time responsiveness. What does this mean for IoT devices and the infrastructure that supports them? More of the data will need to be handled at - or closer to - the devices themselves.
Apr. 30, 2017 12:15 AM EDT Reads: 1,257